I agree with you there - in that I don't think he's a bigot in the general sense of the word - he's misguided (IMHO, natch) in voting for Prop 8 but probably not actually homophobic (he might be - it's not possible to tell from this single action.)

But if you're going to be the CEO of a very public organisation, things like this (or, say, shooting an elephant, hiring hula girls for trade show, using racial epithets, whatever) will bite you badly in the ass and you really need a good narrative beyond "the lurkers[1] support me".

[1] Indonesians